>Well, I guess the spl() fix is probably going to be the quickest here
>then, please send it to me once you've pounded on it, Ed.
So my spl() fix seems to eliminate the problem for me but while I'm looking
at this stuff I want to make sure there aren't any related cases left in.
My current patch i
On Wed, 13 Aug 2003, Ed Maste wrote:
> I think I've found the problem.
>
> crfree() is called from a lot of places (I counted at least 20) including
> sodealloc() in the socket code, crcopy() etc. It's called at splnet() from
> sodealloc(). I'm not sure what spl (if any) it might be called at
On 13-Aug-2003 Mike Silbersack wrote:
>
> On Wed, 13 Aug 2003, Ed Maste wrote:
>
>> I think I've found the problem.
>>
>> crfree() is called from a lot of places (I counted at least 20) including
>> sodealloc() in the socket code, crcopy() etc. It's called at splnet() from
>> sodealloc(). I'm
On Thu, 14 Aug 2003, John Baldwin wrote:
> In that case, CPU 2 uses an IPI to "push" the interrupt over to CPU 1
> since CPU 1 is in the kernel. CPU 2 will not handle an interrupt unless
> it can get the giant lock.
>
> --
>
> John Baldwin <[EMAIL PROTECTED]> <>< http://www.FreeBSD.org/~jhb/
Mike "Silby" Silbersack wrote:
>Well, as ui_ref is the best bet, redoing your tests with it expanded to
>ui_int is where we need to start before looking further. :)
>
>I believe that a uidinfo->ui_ref over/underflow could cause random memory
>corruption, so maybe the panic you're seeing comes abou
PM
To: Scot Loach
Cc: '[EMAIL PROTECTED]'
Subject: RE: TCP socket shutdown race condition
On Sat, 2 Aug 2003, Scot Loach wrote:
> I don't think that's the problem, although it does seem suspicious.
>
> Here's the struct ucred pointed to by the socket:
>
> (
On Sat, 2 Aug 2003, Scot Loach wrote:
> I don't think that's the problem, although it does seem suspicious.
>
> Here's the struct ucred pointed to by the socket:
>
> (kgdb) p *so.so_cred
> $2 = {cr_ref = 3279453304, cr_uid = 3486088556, cr_ngroups = 1, cr_groups =
> {
> 0, 3276863080, 3277717
scot.
-Original Message-
From: Mike Silbersack [mailto:[EMAIL PROTECTED]
Sent: Friday, August 01, 2003 10:51 PM
To: Scot Loach
Cc: '[EMAIL PROTECTED]'
Subject: Re: TCP socket shutdown race condition
On Fri, 1 Aug 2003, Scot Loach wrote:
> Earlier this week one of our FreeBS
On Fri, 1 Aug 2003, Don Bowman wrote:
> > u_short ui_ref; /* reference count */
> > };
> >
>
> We are pushing in the ~50-~70K TCP connections to this process.
>
> I think i see what you are suggesting :)
>
> --don
Bingo. Change that u_short to a u_int, and see if that ca
> From: Mike Silbersack [mailto:[EMAIL PROTECTED]
> On Fri, 1 Aug 2003, Scot Loach wrote:
>
> > Earlier this week one of our FreeBSD 4.7 boxes panic'd.
> I've posted the
> > stack trace at the end of this message. Using google, I've
> found several
> > references to this panic over the past th
On Fri, 1 Aug 2003, Scot Loach wrote:
> Earlier this week one of our FreeBSD 4.7 boxes panic'd. I've posted the
> stack trace at the end of this message. Using google, I've found several
> references to this panic over the past three years, but it seems its never
> been taken to root cause.
>
>
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